Distance handling of electrodes



Oct. 2, 1928.

M. WALTHER DISTANCE HANDLING OF ELECTRODES s Sheets-Shet Filed Nov. 4,1925 1,686,302 'M. WALTHER DISTANCE HANDLING OF ELECTRODES Filed Nov. 4,1925 s'sneets-sneet 2 haw/1101111))!!! I gnp'entop g2) Amer/N M44 THE/8;t

1,686,302 M. WALTHER FileqfNov. 4, 193 5 3 sheejsheet 3 DISTANCEHANDLING OF ELECTRODES .59 /f V H a Oct. 2, 1923.

Patented Get. 2, 1928 p UNIT D-STATE ron amx'rnoxamsx mnus'rnm "PATENT,.fomcsor wonwav, or osno. wonwar.

ms'rAncE HANDLING or nmo'rnonns.

' Application jlled Minibar 4,1925, Serial in. 6 6,794, and mll'oi'waylfovember 7,1924.

The electrode packets previously used in the big electric smeltingfurnaces for carcation bide and ferro alloys have now gradually. beenreplaced by the so-called selfbakmg".

. continuous electrodes which are made at the place where they are used.These electrodes are never removed from the smelting furnace but. arelowered through the electrode hold er when the working end of theelectrode below the holder. becomes too short. As these electrodes mayweigh up to 10 tons very. strong electrode holders are required, havingpowerful pressing-or gripping members and preventing it from slidinguncontrolled through the holder during its use.

' ment may 'be'eflected from-a place at some not being subjectedto thefurnace.

I have now found that the handling of such electrodes by means of asimple arrangedistance. from. the furnace itself, said place the intenseheat from Hereby firstly a greater safety for the workmen is attained,possible accidents'as for instance drop of the elegtrode whereby glowingmetal or carbide is splashed-aroundcausing no danger. ISecondlyfin'c'reased production is attained as it is possibleto-lowerthe electrode during its use without-breaking the current.

to keep the electrode in place ..of the form shqw means of t In the Fig.

fication form of the invention.

parts brokerf away, of Fig" 2.

Fig. 4; represents a view similar to Fig. l-

bf another form, partsbeing' broken awe and shown in section. V

Fig. 5 represents a view similar to n in Fig. 4.

Fig. 6 represents aview similar to Fig-4 of still another form of theinvention.

tion showing an electrode provided with'a mechanism fordistance-handling, 5 is the electrode, 6 is a platformprotecting againstheat lfromthe'furnace and above which the tam'ping takes place. 7 is aworm wheel in threads 10 and registers with, the lever 11 movable aroundthe tap 12 its other end drawings forming part of this applip 1represents an elevational view, partly in section, illustrating theinvention.

Fig. 2 represents an elevational view of half of an electrode equippedwith a1'nodi.'

Fig. 1 is an elevational view, partly in sec drivin th Yshaft SWVhen s tin motion by 1e wheel 9. The s aft Sis movable pressing against themember 1 1 which again presses against the electrode griPPing'memher-.15thus keeping the electrode: in place. By opposite turning of the wheel 9the elec- The distance-handling me. be carriedout trode holder may againbe loosened. All

in many different ways, all accordin to the nature of the holder.Commonto em all is one or more mechanical connection mem-.

bers between the inechanismpre sing the electrode tight in theholder andthe place from which the distance-handling is efiected. Generally itwill'be' advantageous to efiept the distance-handling from the taming iroom arran d above-the furnace" "n in which the uilding up of the 'el decarried'out. This room is always accessible. during the use of thefurnace'an'd care istaken to keep flie temperature of this room handlingof the holder may thus be carried out from vthe'tamping platform.

Fig. .2 illustrates a modified form arminvention-showing an elevation.of one half of an electrodein which the shaft 8 is moved in'the samewayas in Fig. l, but dueto its rotation moves the levers 16 and '17 asshown in'Fig. 3 which is a sectionthrough Fig. 2

at the line H Thelevers" are movable.

around the taps 18 and'1'9and engage with the members 14 which againpress against the p one half ofan electrode, partly shown inseetion, inwhich the shaft 8 by means of its rotation drives'a T electrodefppingmemberlti. Fig. 4 si o ws an elevation of worm wheel--20 whichbymeans of threads wards.-

- Fi 5 i'sa section through Fig. 4 at the line,

Fig. 6'

.will move the member. 14 forwards orback m shows elevation of one halfof an 1 electrode; partly shown insection, infwhieh l theshaft 8 moves'a lever 21 by means of screw-threads 22.. The lever is movable pressesthe member 14.- in or out.

In all drawings the same numbers refer to the same or correspondingparts.

As will be understood from above the invention may becarried into effectin many different ways and is not limited to above e'xamplcs which onlyillustrate a few practical applications. The arrangement may of coursealso be employed'with usual electrodes of same dimensions as thecontinuous electrodes and will then afford the same advantages to theworkmen.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

l. Arrangement for handling of-selfbaking electrodes for electricfurnaces comprising a tamping room arranged above the furnace and ingmeans located below the room and adjacent the holder, a movable shaftextending into the room, means located in the room for actuating suchshaft, and means operable by the shaft for actuating said holderengaging means. A I

. 2L Arrangement for handling of electrodes for electric furnacescomprising a room protected from the heat of the furnace, a holder forthe electrode, a shaft terminating at one end adjacent the holder, meanslocated in said room for operating said shaft, means for tightening andloosening said holder, and means connecting said tightening andloosening means with the adjacent end ofsaid shaft and operable by thelatter for actuating said tightening and loosening means.

3. Arrangement for handling of selfbakrotected from the heat of thelat-- 'ter, a hol er for the electrode, holder engaging electrodes forelectric furnaces comprising a room protected from the heat of thefurnace and intowhich the electrode extends, a

holder for the electrode, a rotatable shaft extending to the outside ofsaid room, means located in said room for operating said shaft, meansfor actuatlng the holder, and: lever mechanisn'i interposed between saidshaft and holder actuating means for operating the latter from theshaft.

' 4. Arrangement for handling of selfbaking electrodes comprising a roomprotected means located outside of the room and movable toward and awayfrom the electrode, and

means for translating the rotary movement of the shaft to movementof'said holder engaging means toward and away. from the electrode.

5. Arrangement for handling of selfbaking electrodes for electricfurnaces comprisa tamping room in which the electrode is built up, anelectrode holder located outside of said room,-hol.der engaging meansmovable bodily towardand away from the electrode, a shaft extending intothe room at one end and teru'iinating'at its other end adjacent theholder, means located in the room for rotating said shaft, and meansinterposed between the holder and the adjacent end of the shaft fortranslating the rotary movement of the shaft to movement of the holderengaging means toward and away from the electrode.

MARTIN VVALTHER.

